Bicycle derailleur



FIG. 1 is a first side elevational view of a bicycle derailleur showing my new design;

FIG. 2 is a front elevational view of the bicycle derailleur showing my new design;

FIG. 3 is a rear elevational view of the bicycle derailleur showing my new design;

FIG. 4 is a top elevational view of the bicycle derailleur showing my new design;

FIG. 5 is a second side view of the bicycle derailleur showing my new design; and,

FIG. 6 is a bottom view of the bicycle derailleur showing my new design.

The drawings show a bicycle derailleur in accordance with embodiments of my new design. 

The ornamental design for a bicycle derailleur, as shown and described. 